The company operates a non-electrified 92 km (55 mile) long line, between Alicante, Benidorm[?], and Denia.
And also operates the city tram and metro system of Valencia.
... to both sides, getting <math>x^2+\frac{b}{a}x+\frac{b^2}{4a^2}=-\frac{c}{a}+\frac{b^2}{4a^2}.</math> The left side is now a perfect square; it is the ...